[Bug 54560] mscoree:mscoree - test_loadpaths_execute() sometimes gets directory creation errors

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=54560

--- Comment #1 from François Gouget  ---
AllocateLocallyUniqueId() seems to be going through the LowPart field of the
unique id pretty fast. In one run on w1pro64 it went from d9e8e to 10f64b.
Given that GetTempFileNameW() only uses the low 16 bits of maybe we can
sometimes get collisions during the test?

That still does not entirely explain this issue since test_loadpaths_execute()
normally deletes the temporary directories. As far as I can tell there is only
one loophole compatible with the traces which is in when a timeout occurs a
call where expect_fail is true. But that seems like a pretty big coincidence.